2 Brodart Clear Vinyl Adjustable Book Slip-covers -- any size -- your choice! YOU MUST TELL US WHAT TWO SIZES OF COVERS YOU NEED -- WIDTH IS ADJUSTABLE, HEIGHT IS NOT! Mix and Match any two covers from sizes listed in product description One-piece heavy-duty 7 mil clear vinyl They are super easy to install and require no adhesive or tape After you make your purchase, please e-mail us through the Amazon page the size that you desire! We cannot complete your order until we have the size you need!